21095586

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{709}}^1$

素因数の和:768

約数の個数: 64

約数和(自身を含む): 51120000

約数和(自身を除く): 30024414

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 29, 38, 54, 57, 58, 87, 114, 171, 174, 261, 342, 513, 522, 551, 709, 783, 1026, 1102, 1418, 1566, 1653, 2127, 3306, 4254, 4959, 6381, 9918, 12762, 13471, 14877, 19143, 20561, 26942, 29754, 38286, 40413, 41122, 61683, 80826, 121239, 123366, 185049, 242478, 363717, 370098, 390659, 555147, 727434, 781318, 1110294, 1171977, 2343954, 3515931, 7031862, 10547793, 21095586]

約数ペア:

[(1, 21095586), (2, 10547793), (3, 7031862), (6, 3515931), (9, 2343954), (18, 1171977), (19, 1110294), (27, 781318), (29, 727434), (38, 555147), (54, 390659), (57, 370098), (58, 363717), (87, 242478), (114, 185049), (171, 123366), (174, 121239), (261, 80826), (342, 61683), (513, 41122), (522, 40413), (551, 38286), (709, 29754), (783, 26942), (1026, 20561), (1102, 19143), (1418, 14877), (1566, 13471), (1653, 12762), (2127, 9918), (3306, 6381), (4254, 4959)]